Take-up mechanism.



No. 818,047. PATENTED APR.1'7, 1906. N. POWER. TAKE-UP MECHANISM.

APPLICATION FILED MAY12,1904.

WITNESSES: INVE/VTUI? 7/ ATTOR/VE ornro i NICHOLAS rowan, or NEW roan, N. Y.

' TAKE -UP ms oHAmsm.

/ I Application filed Hay.12,1904. Serial No. 207,564.

e To all whom/iv may concern:-

Be it known that 1, NICHOLAS POWER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Im roved Take-Up Mechanism, of which the fol owing is a full, clear, and exact description.

The purpose of the invention is to provide a take-up or compensating device adapted I for use in connection with a spool or any article on which material is to be wound up or unrolled, said device being a driving device for the article to which it is applied.

. A furtherpurpose of the invention is to so construct'the devicefthat it will automatically vary its Speed in proportion to the increased diameter of the reeled or wound material, the speed of the article to which the device is applied being 'greatest'at the initial operation of winding, automatically decreasing as the bulk increases and in such a proportionate manner that the tensional strain on the material to be wound or reeled will be uniform throughout the Winding or reeling operation from start to finish. f

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawin s, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical section through the I improved device, a side elevation of the shaft tension-spring in section, and the support for the shaft being shown in elevation.

The compensating or take-up device is of very simple construction and is entirely automatic in its action. In the application of the improvement I-haveshown a spindle or shaft 10, adapted to be mounted in one or more hangers 11, and the said shaft or spindle is shown as providedwith a power-con- I Specification of Letters Patent.

' Patented April 17, 1906,

ated by'an engaging belt 14, driven from any convenient source of power.

The take-up device in detail consists of a pulley A in two parts, or, in other words, it is split at its center-and divided into two sections 15 and 16. The pulley as a whole is providedwithaperi heral V-groove17. The section 15 of the pul ey is provided with ahub 18, secured to the shaft or spindle 10 by a setscrew or thumb screw 18 or equivalent means, while the other section 16 is free to turn on the said shaft or spindle 10, but is normally held in engagement with the fixed section by means of a spring 19, which presses against section 15 by means of a spring 19, coiled around the shaft or spindle 10, having bearing against the loose section 16 and against a washer '20, which is loosely mounted on the shaft or spindle 10 and has bearing against a collar 21, secured to the said shaft or spindle by a set-screw 22.

In Figs. 1 and 2 l have illustrated the pulley A are adapted articularly for use in connection with a be t 23, circular in cross-section; but other forms of belts may be employedas, for example, a belt B may be ducting gear 12 and a driven pulley 13, oper used, as is shown in Figs; 3 and 4, in which the belt B consists of an endless strap 24, having series of practically wedge-shaped blocks 25 secured to its inner face, and these wedgeshaped blocks are adapted to enter the groove 17 in the pulley A.

I denominate the pulley A a compensating-pulls because when the material is to be initial y wound on a spool or the like with which the belt B or 23 is connected the speed of the material carrying the said spool will be greatest, as the belt will at that time only engage with both sections 15 and 16 of the saidpulley, and the two sections 15 and 16 of the said pulle will at such time act as one; but as the bulh of material increases on the spool in proportion to the increase of the bulk will be the strain on the belt, and the belt will gradually Work inward, carrying the loose section 16 from the fixed section 15 against the tension of the spring 19, and as this separation is made even to a slight extent the speed of the pulley, and consequently the speed of the spindle or the device withwhich it may be in belt connection, will be proportionately decreased, as the smaller surface of the belt will engage with the fixed portion of thepulley, and the fixed portion of the pulley, in a driving sense, will not have the assistance ICC of the loosely-mounted portion 16. Accordingly the driving eflect of the belt upon the splndle will be exerted through the fixed portion only of the pulley, the loosely-mounted portion being out of frictional. contact with the fixed portion and free to turn on the spindle. As soon as the loose portion of the pulley is forced out of contact with the fixed 1. The combination in mechanism of the character specified of a rotatable spindle, a

compensating-pulley mounted on said spindle and comprising two disks or sections, one of which sections is fixed upon the spindle, and the other free. to slide and turn on the spindle, means for yieldably holding the latter disk or section in contact with the former, and a belt engaging both of said disks or sections. r

2QA take-up device comprising a rotata-' ble s indle, a pu ey-section fixed upon said spin le, a pulle section loosely mounted on said spindle an 'free to slide and turn thereon, said pulley-sections resentin asubstantially ii-shaped groove etween t eir peripheral portions, means for-holding said sections in yielding contact, and a belt running in the groove between the belt-sections.

3. A take-up device comprising a rotatable s indle, a pulley-section fixed upon said spin le, a second pulley-section rotatably and slidably mounted on said spindle, said pulley-sections presenting a substantially V- shaped groove between their peripheral portions, a spring engaging said second pulleysection and holding it in yielding contact with the other pulle -section, and a belt running in the groove etween said pulley-sections. v 4. Atake-up device comprising a rotatable spindle, apulley-section fixed on said spindle, a second pulley-section mounted-on said spindle and free to slide and turn thereon, a tension device for holding said loosely-mounted pulle -section' in yielding contact with the fixe pulley-section, means for varying the tension of said tension device, and a belt en aging both of said pulley-sections.

n testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' NICHOLAS POWER.

Witnesses:

FRED. AoKER, JNO. M. BITTER. 

